<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Vue检测数据改变的原理_数组</title>
        <script type="text/javascript" src="../js/vue.js"></script>
    </head>
    <body>
        <!-- 准备好一个容器 -->
        <div id="root">
            <h1>学校信息</h1>
            <h2>学校名称：{{school.name}}</h2>
            <h2>学校地址：{{school.address}}</h2>
            <h2>校长是：{{school.leader}}</h2>
            <hr />
            <h1>学生信息</h1>
            <button @click="addSex">添加一个性别属性，默认值是男</button>
            <h2>姓名：{{student.name}}</h2>
            <h2 v-if="student.sex">性别：{{student.sex}}</h2>
            <h2>年龄：真实{{student.age.rAge}}, 对外{{student.age.sAge}}</h2>
            <h2>爱好</h2>
            <ul>
                <li v-for="(h, index) in student.hobby" :key="index">{{h}}</li>
            </ul>
            <h2>朋友们</h2>
            <ul>
                <li v-for="(f, index) in student.friends" :key="index">
                    {{f.name}}-{{f.age}}
                </li>
            </ul>
        </div>
    </body>
    <script type="text/javascript">
        Vue.config.productionTip = false;

        const vm = new Vue({
            el: '#root',
            data: {
                school: { name: '尚硅谷', address: '北京' },
                student: {
                    name: 'tom',
                    age: {
                        rAge: 40,
                        sAge: 29,
                    },
                    hobby: ['抽烟', '喝酒', '烫头'],
                    friends: [
                        { name: 'jerry', age: 35 },
                        { name: 'tony', age: 36 },
                    ],
                },
            },
            methods: {
                addSex() {
                    // Vue.set(this.student, 'sex', '男');
                    this.$set(this.student, 'sex', '男');
                },
            },
        });
    </script>
</html>
